I recently bought Samsung Galaxy Ace Duos and was eager to use it. It turn out to be a complete waste of money and stands noway near to tall claims of the company.
The software is ill designed and phone hangs too often, the touch is VERY VERY bad.although company claims that it has installed capacitive type touch but usage is as good as resistive type. you have to swype hard for making phone work. in in fact I had many call drops since I was unable to slide the call accept bar because of the touch.
battery life is also poor and it need recharge after every 12 hours.
My suggestion dont buy it...